Wrist exerciser



FIG. 1 is a front, right-side perspective view of the wrist exerciser of the present invention;

FIG. 2 is rear, left-side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 another front, right-side perspective view thereof. 

CLAIM The ornamental design for a wrist exerciser, as shown. 